<template>
  <view class="my-settle-container">
    <!-- 全选 -->
    <label class="radio" @click="changeAllState">
      <radio color="#C00000" :checked="isFullCheck"/><text>全选</text>
    </label>
    <!-- 合计 -->
    <view class="amount-box">
      合计:<text class="amount">￥{{checkedGoodsAmount}}</text>
    </view>
    <!-- 结算按钮 -->
    <view class="btn-settle" @click="settlement">结算({{checkedCount}})</view>
  </view>
</template>

<script>
  import { mapGetters, mapMutations, mapState } from 'vuex'
  export default {
    name:"my-settle",
    data() {
      return {
        // 倒计时的秒数
        seconds: 3,
        // 定时器的 id
        timer: null
      };
    },
    computed: {
     ...mapGetters('m_cart', ['checkedCount', 'total', 'checkedGoodsAmount']),
     ...mapGetters('m_user', ['addstr']),
     ...mapState('m_user', ['token']),
     ...mapState('m_cart', ['cart']),
     isFullCheck() {
       return this.total === this.checkedCount
     }
    },
     methods: {
       ...mapMutations('m_cart', ['updateAllGoodsState']),
       ...mapMutations('m_user', ['updateRedirectInfo']),
       changeAllState() {
         this.updateAllGoodsState(!this.isFullCheck)
       },
       // 用户点击了结算按钮
       settlement() {
         if(!this.checkedCount) return uni.$showMsg('请选择要结算的商品！')
         if(!this.addstr) return uni.$showMsg('请选择收货地址！')
         // if(!this.token) return uni.$showMsg("请先登录！")
         if(!this.token) return this.delayNavigate()
         this.payOrder()
       },
       async payOrder() {
         // 1. 创建订单
         // 1.1 组织订单的信息对象
         const orderInfo = {
           // order_price: this.checkedGoodsAmount,
           order_price: 0.01,
           consignee_addr: this.addstr,
           goods: this.cart.filter(x => x.goods_state).map(x => ({ 
             goods_id: x.goods_id, 
             goods_number: x.goods_count, 
             goods_price: x.goods_price 
           }))
         }
         // 1.2 发起请求创建订单
         const {data: res} = await uni.$http.post('/api/public/v1/my/orders/create', orderInfo)
        console.log(res);
         if(res.meta.status != 200) return uni.$showMsg('创建订单失败！')
         
         // 1.3 得到服务器响应的“订单编号”
         const orderNumber = res.message.order_number
         // console.log(orderNumber)
         // 2. 订单预支付
         // 2.1 发起请求获取订单的支付信息
         const {data: res2} = await uni.$http.post('/api/public/v1/my/orders/req_unifiedorder', {order_number: orderNumber })
         // 2.2 预付订单生成失败
         if(res2.meta.status !== 200) return uni.$showMsg('预付订单生成失败！')
         // 2.3 得到订单支付相关的必要参数
         const payInfo = res2.message.pay
         console.log(payInfo)
         
         // 3. 发起微信支付
         // 3.1 调用 uni.requestPayment() 发起微信支付
         const [err, succ] = await uni.requestPayment(payInfo)
         // 3.2 未完成支付
         if (err) return uni.$showMsg('订单未支付！')
         // 3.3 完成了支付，进一步查询支付的结果
         const { data: res3 } = await uni.$http.post('/api/public/v1/my/orders/chkOrder', { order_number: orderNumber })
         // 3.4 检测到订单未支付
         if (res3.meta.status !== 200) return uni.$showMsg('订单未支付！')
         // 3.5 检测到订单支付完成
         uni.showToast({
           title: '支付完成！',
           icon: 'success'
         })
       },
       // 延时导航到 my 页面
       delayNavigate() {
         this.seconds = 3
         this.showTips(this.seconds)
         // 创建定时器，每隔 1 秒执行一次
         // 将定时器的 Id 存储到 timer 中
         this.timer = setInterval(() => {
           this.seconds--
           if(this.seconds <= 0) {
             // 清除定时器
             clearInterval(this.timer)
             uni.switchTab({
               url: '/pages/my/my',
               success: () => {
                 this.updateRedirectInfo({
                   openType: 'switchTab',
                   from: '/pages/cart/cart'
                 })
               }
             })
             // 终止后续代码的运行（当秒数为 0 时，不再展示 toast 提示消息）
             return
           }
           this.showTips(this.seconds)
         }, 1000)
       },
       // 展示倒计时的
       showTips(n) {
         uni.showToast({
           icon: 'none',
           title: '请登录后再结算！' + n + '秒后自动跳转到登录页',
           // 为页面添加透明遮罩，防止点击穿透
           mask: true,
           duration: 1500
         })
       }
     }
  }
</script>

<style lang="scss">
.my-settle-container {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 50px;
  background-color: white;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 14px;
  padding-left: 5px;
  .radio {
    display: flex;
    align-items: center;
  }
  .amount-box {
    .amount {
      color: #C00000;
      font-weight: bold;
    }
  }
  .btn-settle {
    background-color: #C00000;
    height: 50px;
    color: white;
    // 行高
    line-height: 50px;
    padding: 0 10px;
    min-width: 100px;
    text-align: center;
  }
}
</style>